QML components which have model / delegate reset when model is updated

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12

Window {
    id: window
    width: 300
    height: 300
    color: "black"

    property var array: ([0])

    Timer {
        running: true
        repeat: true
        interval: 2000
        onTriggered: {
            ++array[0]
            // Value won't change if it's not set to itself
            array = array
        }
    }

    // All "Item"s are being fully reset, at every update
    // the hover effect on button disappears,
    // and modal is being closed
    Repeater {
        model: array
        delegate: Item {
            Button {
                text: "Open My Popup"
                onClicked: modal.open()
            }

            Popup {
                id: modal
                anchors.centerIn: Overlay.overlay
                modal: true

                Text {
                    text: model.modelData
                    color: "white"
                }
            }
        }
    }
}